FDA eyes chemical’s link to
vaping illnesses
BY LENA H. SUN
THE WASHINGTON POST
WASHINGTON — State and federal health officials investigating mysterious lung illnesses linked to
vaping have found the same chemical in samples of marijuana products used by people sickened in different parts of the country and who used different brands of products in recent weeks.
The chemical is an oil derived from vitamin E. Investigators at the U.S. Food and Drug Administration found the oil in cannabis products in samples collected from patients who fell ill across the United States. FDA officials shared that information with state health officials during a telephone briefing this week, according to several officials who took part in the call.
That same chemical was also found in nearly all cannabis samples from patients who fell ill in New York in recent weeks, a state health department spokeswoman said.
Vitamin E is found naturally in certain foods, such as canola oil, olive oil and almonds. The oil derived from the vitamin, known as vitamin E acetate, is commonly available as a nutritional supplement and is used in topical skin treatments. It is not known to cause harm when ingested as a vitamin supplement or applied to the skin.
Its name sounds harmless, experts said, but its molecular structure could make it hazardous when inhaled. Its oil-like properties could be associated with the kinds of respiratory symptoms that many patients have reported: cough, shortness of breath and chest pain, officials said.
“We knew from earlier testing by New York that they had found vitamin E acetate, but to have FDA talk about it from their overall testing plan, that was the most remarkable thing that we heard,” said one official who took part in the briefing but was not authorized to speak publicly.
The FDA also told state officials that its lab tests found nothing unusual in nicotine products that had been collected from sick patients, according to another person who took part in the call.
State health departments are reporting new cases weekly. As of Aug. 27, there were 215 possible cases reported by 25 states. Additional reports of lung illnesses are under investigation, according to the Centers for Disease Control and Prevention, which is leading the investigation.
On Wednesday, Oregon health authorities said a middle-aged adult who died in late July of a severe respiratory illness had used an e-cigarette containing marijuana oil purchased from a legal dispensary. It’s the second death linked to
vaping nationwide and the first to be linked to a product bought at a store. Illinois officials reported the first death last week but did not specify what kind of product was used.
State and federal health authorities said they are focusing on the role of contaminants or counterfeit substances as a likely cause of vaping-related lung illnesses. Many patients have told officials and clinicians that they bought cannabis products off the street. Many of those who have fallen ill say they have vaped products containing marijuana, but some also used traditional nicotine e-cigarettes. Many report using both. Authorities said they are not ruling out adulterants in nicotine vaping products.
Although the discovery of a common chemical in lab tests from the FDA and New York’s highly regarded Wadsworth Center lab offers a potential lead, officials cautioned that they are a long way from understanding what exactly is making so many people sick.
An FDA spokesman said the agency is “looking into potential leads regarding any particular constituent or compound that may be at issue.” The FDA is analyzing sample for a broad range of chemicals, including nicotine, THC, other cannabinoids, “cutting agents” that may be used to dilute liquids, other additives, pesticides, opioids, poisons and toxins.
“The number of samples received continues to increase and we now have over 100 samples for testing,” FDA spokesman Michael Felberbaum said Thursday.
Not all the samples are suitable for testing. The FDA analyzed 12 viable nicotine samples and 18 viable THC products, state officials said. Vitamin E acetate was found in 10 of the 18 THC products.
The federal lab results seem to confirm findings from New York state. Late last week, its lab found “very high levels of vitamin E acetate in nearly all” its cannabis samples tested. More than a dozen samples were tested, a health department spokeswoman said Thursday. At least one vape product containing vitamin E acetate has been linked to each patient who submitted a product for testing, the department said.
“Vitamin E acetate is not an approved additive for New York state Medical Marijuana Program-authorized vape samples and was not seen in the nicotine-based products that were tested. As a result, vitamin E acetate is now a key focus” of New York’s investigation, New York state Health Commissioner Howard Zucker said in a statement Thursday.
New York had received 34 reports from doctors of severe pulmonary illness among patients who ranged in age from 15 to 46 who were using at least one cannabis-containing vape product before becoming sick.
